Components and functions of the computer

The calculator is composed of five components of the computer, the controller, the memory, the input device and the output device,

Each part performs a specific basic function as required.

⑴ operator or arithmetic logic unit (arithmetical and Logical unit)

The main function of an operator is to perform various operations on the data. Besides the basic arithmetic operations of addition, subtraction, multiplication and addition, these operations include the logical processing ability of "logical judgment", which is the basic logic operation of "and", "or", "non", and the comparison and shift of data.

⑵ Storage (memory unit)

The main function of memory is to store the program and various data information, and to complete the program or data access at high speed and automatically during the operation of the computer.

⑶ Controller (control Unit)

The controller is the control center of the whole computer system, which directs the computers to work in a coordinated manner, ensuring that the computer is operated and handled methodically in accordance with the predetermined goals and procedures.

⑷ input Device

A device used to enter various raw data and programs into a computer is called an input device .

⑸ output device

A device that outputs various types of data from a computer is called an output device.

Buses (bus )

is a common communication trunk that transmits information between various functional parts of a computer, which is a transmission harness composed of wires, according to the kind of information transmitted by the computer.

This article is from the "11837478" blog, please be sure to keep this source http://11847478.blog.51cto.com/11837478/1853119

Components and functions of the computer